Shingle lock



May 4 1926. 1,583,254

F. E. LlETZ SHINGLE LOCK Filed Deo. 18, 1925 Patented iay 4, 1926.

FELIX E. LIETZ, OF BUFFALO, NEW YORK.

ASIHINGrLE LOCK.

Application led December 18, 1925. Serial No. 76,166.

To all whom t may concern:

Be it known that I, FELIX E. LIETZ, a citi'- zen of the United States,residing in Buffalo, in the county of Erie and State of New York,'haveinvented new and useful Improvements in Shingle Locks, of which thefollowing is a specification.

This invention relates to the type of vshingles which are substantiallysquare and laid diagonally on the roof and provided with turned-undercorners to thicken theii horizontal lower edges and give them a strongand heavy appearance. Usually, they are composed of composition roofingsuch as felt saturated with asphalt and faced with crushed slate orsimilar mineral, to render them 'flexible Some of theobjects of myinvention are to simplify the means for locking the lower corner of theshingle in place; to provide a strong concealed lock yof this kind whichwill effectually withstand the lifting and loosening effect of windandrainstorms and to materially reduce the cost ofthe same. A furtherobject is to so construct the shingle and its locking device that the.shingle can be easily adjusted up or down on the roof to aline it withadjacent shingles in the same row, and so that it is free to eX- pandand contract in response to changes of temperature, thus preventingbuckling of the shingle and allowing it t0 lie smooth under all weatherconditions.

In the accompanying drawings:

Figure 1 is a fragmentary top plan view fof a roof embodying theinvention. Figure 2 is an enlarged fragmentary top plan view, partly insection, on line 2 2, Fig. 3. Figure 3 is a vertical longitudinalsection of the roof on line 3-3, Fig. 1. Figure 4 is a perspective viewof one of the'fasteners.

Similar characters of reference indicate corresponding parts throughoutthe several with the head or cross-bar 15 of a substan` tially T-shapedfastener, by preference, of, galvanized iron, the stem 16 of whichpasses through the slot and is driven through the underlying startingstrip or shingle or both, into the roof board. The head or cross-bar ofthe fastener is of suflicient length to overlapthe folded-under cornerfor some distance on either side of the slot to form a strong lock whichrigidly holds the lower corner of the shingle down in place against thebending or lifting action of storms.

In laying and securing a shingle of this improved construction, assuminga course of such shingles to have been previously laid, one of thefasteners is driven into the roofboards with its shank located below andin line with the meeting side corners of two.

previously-laid shingles and with its crosshead` arranged horizontally,as shown in Fig. 1. A. shingle with its slotted corner folded is theninterlocked with the vcross-head of the T-fastener by bringing the slotin line therewith, as shown by dot' and dash lines in Fig. 2; thengiving the shingle an upward quarter turn or swing to the position shownby dotted lines in said figure, bringing the slot at right angles to thecross-head, and finall nailing the side corners of the shing es to theroof-boards. To facilitate the turning or swinging movement of theshingle, the end portions of the T-fastener are beveled on theirundersides, as shown at 17,l in Fig. 4. A

By this construction, the shingle is securely, interlocked with thefastener and the latter is covered and concealed by the body of theshingle, producing a sightly roof exhibiting thick and heavy-appearingedges at the lower corners of the shingles.

Owing to the vertical arrangement -`of the locking-slots, the shingles,after being interlocked withv the fasteners and before being nailed atthe side corners, can be easily shifted up or down to accurately alinetheir folded lower edges and side corners with REISSUED those ofadjacent shingles in the same course.

As is well-known to those conversant with this art, changing weatherconditions cause the flexible composition material, from which suchshingles are cut, to expand or for such Weather changes, allowing themto remain flat under all conditions and preserving the attractiveness ofthe roof.

The lock, While affording a strong and reliable fastening, isexceedingly simple 1n construction in that 1t lnvolves no separate oradditionalparts and it can therefore be manufactured at a comparativelyloW cost. The lock is of such a character that When the shingle is onceproperly engaged with the fastener, it is impossible for it to becomeloose or unlocked from it.

While the construction hereinbefore devscribed has been found veryuseful and desirable, I do'not Wish to be limited to it as it may bemodified Within the scope of the appended claim.

I claim as my invention:

The combination of a4 roof, a fastener of substantially T-form engagingthe roof, and a flexible shingle having a turned-under lower cornerprovided with a slot interlocking with said fastener, the body of theshingle overlying and concealing 'the fastener and the shingle slotbeing disposed at an angle to the cross-head of the fas-- tener,requiring a partial turn ofthe shingle relative to the fastener tointerlock its folded corner therewith.`

FELIX E. LIETZ.

